Volute chamber for wear-resistant pump and pump with volute chamber

Abstract

The utility model provides a volute chamber for a wear-resistant pump, which comprises a volute chamber body, an inner pump body is arranged on the inner surface of the volute chamber body, a bonding layer is arranged between the volute chamber body and the inner pump body, and a bulge is arranged on one side of the inner pump body close to the bonding layer. The utility model further provides a pump with the volute chamber for the wear-resistant pump. The centrifugal pump has the advantages that abrasion of the volute chamber is effectively reduced, the service life of the pump is prolonged, and the centrifugal pump is simple in structure and convenient to operate.

Description

Technical Field

[0001] The utility model belongs to the technical field of fluid equipment, in particular to a volute for an anti-wear pump and a pump provided with the volute. Background Art

[0002] As a core component of the pump, the volute converts kinetic energy into pressure potential energy, thereby increasing the liquid pressure. It is widely used in the transportation links of industries such as metallurgy, chemical industry, and electric power. Especially for slurries containing solid particles, due to their certain concentration and fluidity, it is more suitable to use pumps for transportation. However, during the pump transportation process, the wear of its core component, the volute, is very serious, seriously affecting the service life of the pump. Content of the Utility Model

[0003] To solve the above technical problems, the utility model provides a volute for an anti-wear pump and a pump provided with the volute, effectively solving the problem of serious volute wear and overcoming the deficiencies of the prior art.

[0004] The technical solution adopted by the utility model is: a volute for an anti-wear pump, including a volute body, an inner pump body is provided on the inner surface of the volute body, an adhesive layer is provided between the volute body and the inner pump body, and a protrusion is provided on one side of the inner pump body close to the adhesive layer.

[0005] Further, a plurality of the protrusions are provided and are evenly distributed on the inner pump body.

[0006] Further, the inner pump body is composed of a plurality of inner pump sub-bodies, and the plurality of inner pump sub-bodies are connected to each other along the inner surface of the volute body.

[0007] Further, a positioning column is provided on one side of the inner pump sub-body close to the volute body, a positioning sleeve is provided at the position of the volute body relative to the positioning column, and the positioning column can be inserted into the positioning sleeve.

[0008] Further, positioning protrusions are provided between the inner pump sub-bodies, and the positioning protrusions are provided on the inner surface of the volute body.

[0009] Further, the inner pump sub-bodies at the cut-off tongue of the volute body include a first inner pump sub-body and a second inner pump sub-body arranged oppositely, and a third inner pump sub-body is provided at one end of the first inner pump sub-body and the second inner pump sub-body, and the flow-through surface at the connection end of the first inner pump sub-body, the second inner pump sub-body and the third inner pump sub-body is arc-shaped.

[0010] Further, the adhesive layer is set as an epoxy resin adhesive layer or a resin silicon carbide adhesive layer.

[0011] Further, the inner pump body is set as a silicon carbide sintered inner pump body or a zirconia sintered inner pump body or an alumina sintered inner pump body.

[0012] The present utility model also provides a pump, which includes the volute chamber for an anti-wear pump as described above.

[0013] The advantages and positive effects of the present utility model are as follows: By adopting the above technical solution, the wear of the volute chamber is effectively reduced, the service life of the pump is prolonged, the structure is simple, and the operation is convenient. Description of the Drawings

[0014] Figure 1 It is a schematic diagram of the overall structure of the volute chamber for an anti-wear pump according to an embodiment of the present utility model.

[0015] Figure 2 It is a schematic diagram of the pump body structure inside the volute chamber for an anti-wear pump according to an embodiment of the present utility model.

[0016] Figure 3 It is a schematic diagram of the pump body structure inside the volute chamber for an anti-wear pump according to an embodiment of the present utility model.

[0017] Figure 4 It is a schematic diagram of the positioning structure of the volute chamber for an anti-wear pump according to an embodiment of the present utility model.

[0018] Figure 5 It is a schematic diagram of the positioning protrusion of the volute chamber for an anti-wear pump according to an embodiment of the present utility model.

[0019] In the figure:

[0020] 1, volute chamber body; 2, inner pump body; 3, adhesive layer

[0021] 4, protrusion; 5, first inner pump split body; 6, second inner pump split body

[0022] 7, third inner pump split body; 8, fourth inner pump split body; 9, fifth inner pump split body

[0023] 10, sixth inner pump split body; 11, seventh inner pump split body; 12, eighth inner pump split body

[0024] 13, ninth inner pump split body; 14, tenth inner pump split body; 15, eleventh inner pump split body

[0025] 16, twelfth inner pump split body; 17, flow-through surface; 18, positioning post

[0026] 19, positioning sleeve; 20, positioning protrusion Detailed Embodiment

[0027] The embodiment of the present utility model provides a volute chamber for an anti-wear pump and a pump provided with the volute chamber. The following makes an explanation of the embodiment of the present utility model with reference to the drawings.

[0028] In the description of the embodiments of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "top" and "bottom" is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "set" and "connect" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood through specific situations.

[0029] As Figures 1-3 shown, an embodiment of the present utility model provides a volute for an anti-wear pump, which includes a volute body 1 made of a metal material. Since metals are prone to corrosion, an inner pump body 2 is provided on the inner surface of the volute body 1, and the inner pump body 2 is bonded to the inner surface of the volute body 1 by an adhesive layer 3. The inner pump body 2 is made of a wear-resistant material. When the slurry containing solid particles flows through the volute, the wear on the volute body 1 is reduced. To prevent the inner pump body 2 from falling off, a protrusion 4 is provided on the side of the inner pump body 2 close to the adhesive layer 3. The shape of the protrusion 4 is not limited and can be various shapes such as circular or quadrilateral. The protrusion 4 increases the contact area between the inner pump body 2 and the adhesive layer 3, improving the stability of the inner pump body 2.

[0030] Specifically, to further increase the stability of the inner pump body 2, a plurality of protrusions 4 are provided and evenly arranged on the side of the inner pump body 2 close to the adhesive layer 3.

[0031] For the convenience of installation, the inner pump body 2 is provided in a split form, usually set to 8 - 12 inner pump segments. A plurality of inner pump segments are connected to each other along the inner surface of the volute body 1 to form a wear-resistant inner pump body 2, and the inner pump body 2 is adapted to the inner surface of the volute body 1.

[0032] When bonding the inner pump segments one by one, a positioning structure is provided for the convenience of installation. In some embodiments, as Figure 4 shown, one set or multiple sets of positioning structures can be provided. Usually, two sets of positioning structures are provided for each inner pump segment. Each set of positioning structures includes a positioning post 18 and a positioning sleeve 19. The positioning post 18 is provided on the side of the inner pump segment close to the volute body 1, and a positioning sleeve 19 is provided at the position of the volute body 1 corresponding to the positioning post 18. The positioning post 18 can be inserted into the positioning sleeve 19 to position the inner pump segment, which is more conducive to rapid bonding. In some embodiments, the positioning structure is a positioning protrusion 20 provided between the inner pump segments, and the positioning protrusion 20 is provided on the inner surface of the volute body 1, asFigure 5 as shown

[0033] As Figure 2 and 3 As shown, for installation, the inner pump split parts at the tongue of the volute body 1 include a first inner pump split part 5 and a second inner pump split part 6 which are oppositely arranged. One end of the first inner pump split part 5 and the second inner pump split part 6 is provided with a third inner pump split part 7. The flow-through surface 17 at the connection end of the first inner pump split part 5, the second inner pump split part 6 and the third inner pump split part 7 is arc-shaped. Since the tongue of the volute body 1 is more prone to wear than other positions, the thickness of the first inner pump split part 5, the second inner pump split part 6 and the third inner pump split part 7 near the tongue needs to be greater than that of other positions.

[0034] The material of the bonding layer 3 is epoxy resin or resin silicon carbide, which can effectively improve the bonding strength between the volute body 1 and the inner pump body 2. At the same time, epoxy resin and resin silicon carbide have good corrosion resistance.

[0035] The material of the inner pump body 2 is silicon carbide sintered body or zirconia sintered body or alumina sintered body, which has very high pressure resistance strength and flexural strength, and can improve the wear resistance and impact resistance of the volute.

[0036] A pump, including the volute for anti-wear pump as described above.

[0037] Example 1: As Figures 1-3 shown, a volute for anti-wear pump includes a volute body 1 made of metal material. A plurality of inner pump split parts are bonded on the inner surface of the volute body 1 by a bonding layer 3, including a first inner pump split part 5, a second inner pump split part 6, a third inner pump split part 7, a fourth inner pump split part 8, a fifth inner pump split part 9, a sixth inner pump split part 10, a seventh inner pump split part 11, an eighth inner pump split part 12, a ninth inner pump split part 13, a tenth inner pump split part 14, an eleventh inner pump split part 15, and a twelfth inner pump split part 16. The twelve inner pump split parts are connected to each other along the inner surface of the volute body 1 to form a wear-resistant inner pump body 2, and the inner pump body 2 is adapted to the inner surface of the volute body 1. The first inner pump split part 5 and the second inner pump split part 6 are oppositely arranged at the tongue. The flow-through surface 17 at the connection end of the first inner pump split part 5, the second inner pump split part 6 and the third inner pump split part 7 has an arc transition. The thickness of the first inner pump split part 5, the second inner pump split part 6 and the third inner pump split part 7 near the tongue needs to be greater than that of other positions. Quadrilateral protrusions 4 are evenly distributed on one side of the inner pump body 2 close to the bonding layer 3. The material of the bonding layer 3 is epoxy resin. The material of the inner pump body 2 is silicon carbide sintered body.

[0038] Example 2: As Figures 1-4As shown in the figure, a volute for an anti-wear pump includes a volute body 1 made of metal material. A plurality of inner pump sub-bodies are bonded to the inner surface of the volute body 1 by an adhesive layer 3, including a first inner pump sub-body 5, a second inner pump sub-body 6, a third inner pump sub-body 7, a fourth inner pump sub-body 8, a fifth inner pump sub-body 9, a sixth inner pump sub-body 10, a seventh inner pump sub-body 11, an eighth inner pump sub-body 12, a ninth inner pump sub-body 13, a tenth inner pump sub-body 14, an eleventh inner pump sub-body 15, and a twelfth inner pump sub-body 16. The twelve inner pump sub-bodies are connected to each other along the inner surface of the volute body 1 to form a wear-resistant inner pump body 2, and the inner pump body 2 is adapted to the inner surface of the volute body 1. The first inner pump sub-body 5 and the second inner pump sub-body 6 are oppositely arranged at the tongue. The flow-through surface 17 at the connection end of the first inner pump sub-body 5, the second inner pump sub-body 6 and the third inner pump sub-body 7 has an arc transition. The thickness of the first inner pump sub-body 5, the second inner pump sub-body 6 and the third inner pump sub-body 7 near the tongue is greater than that at other positions. Circular protrusions 4 are evenly distributed on one side of the inner pump body 2 close to the adhesive layer 3. Two positioning posts 18 are provided on one side of each inner pump sub-body close to the volute body 1, and positioning sleeves 19 are provided at the positions of the volute body 1 corresponding to the positioning posts 18, and the positioning posts 18 can be inserted into the positioning sleeves 19. The material of the adhesive layer 3 is resin silicon carbide. The material of the inner pump body 2 is zirconia sintered body.

[0039] Embodiment 3: As Figures 1-3 and Figure 5 shown in the figure, a volute for an anti-wear pump includes a volute body 1 made of metal material. A plurality of inner pump sub-bodies are bonded to the inner surface of the volute body 1 by an adhesive layer 3, including a first inner pump sub-body 5, a second inner pump sub-body 6, a third inner pump sub-body 7, a fourth inner pump sub-body 8, a fifth inner pump sub-body 9, a sixth inner pump sub-body 10, a seventh inner pump sub-body 11, an eighth inner pump sub-body 12, a ninth inner pump sub-body 13, a tenth inner pump sub-body 14, an eleventh inner pump sub-body 15, and a twelfth inner pump sub-body 16. The twelve inner pump sub-bodies are connected to each other along the inner surface of the volute body 1 to form a wear-resistant inner pump body 2, and the inner pump body 2 is adapted to the inner surface of the volute body 1. The first inner pump sub-body 5 and the second inner pump sub-body 6 are oppositely arranged at the tongue. The flow-through surface 17 at the connection end of the first inner pump sub-body 5, the second inner pump sub-body 6 and the third inner pump sub-body 7 has an arc transition. The thickness of the first inner pump sub-body 5, the second inner pump sub-body 6 and the third inner pump sub-body 7 near the tongue is greater than that at other positions. Circular protrusions 4 are evenly distributed on one side of the inner pump body 2 close to the adhesive layer 3. Positioning protrusions 20 are provided between the inner pump sub-bodies, and the positioning protrusions are arranged along the inner surface of the volute body 1.

[0040] The advantages and positive effects of the present utility model are:

[0041] 1. By setting the inner pump body, the wear of the volute is effectively reduced, and the service life of the pump is prolonged;

[0042] 2. The inner pump body is separately arranged, with a simple structure, convenient operation, being conducive to replacement and cost saving;

[0043] 3. The protrusions on the inner pump body increase the contact area with the adhesive layer, improving the stability of the connection of the inner pump body;

[0044] 4. The setting of the positioning structure and the positioning protrusions is more conducive to the positioning of each inner pump body segment, making the operation simpler.

[0045] The above has described the embodiments of the present utility model in detail, but the content described is only the preferred embodiments of the present utility model and cannot be considered as used to limit the scope of implementation of the present utility model. All equivalent changes and improvements made according to the scope of the application of the present utility model shall still fall within the scope covered by the patent of the present utility model.

Claims

1. A volute chamber for an anti-wear pump, comprising a volute chamber body, characterized in that: An inner pump body is provided on the inner surface of the volute chamber body. A bonding layer is provided between the volute chamber body and the inner pump body. A protrusion is provided on one side of the inner pump body close to the bonding layer. The inner pump body is composed of multiple inner pump sub-bodies. The multiple inner pump sub-bodies are connected to each other along the inner surface of the volute chamber body. The inner pump sub-bodies at the tongue of the volute chamber body include a first inner pump sub-body and a second inner pump sub-body arranged oppositely. A third inner pump sub-body is provided at one end of the first inner pump sub-body and the second inner pump sub-body. The flow-through surface at the connection end of the first inner pump sub-body, the second inner pump sub-body and the third inner pump sub-body is arc-shaped.

2. The volute chamber for an anti-wear pump according to claim 1, characterized in that: A plurality of the protrusions are provided and are evenly distributed on the inner pump body.

3. The volute chamber for an anti-wear pump according to claim 2, characterized in that: A positioning post is provided on one side of the inner pump sub-body close to the volute chamber body. A positioning sleeve is provided at the position of the volute chamber body relative to the positioning post. The positioning post can be inserted into the positioning sleeve.

4. The volute chamber for an anti-wear pump according to claim 2, characterized in that: Positioning protrusions are provided between the inner pump sub-bodies, and the positioning protrusions are arranged on the inner surface of the volute chamber body.

5. The volute chamber for an anti-wear pump according to claim 1, wherein: The bonding layer is set as an epoxy resin bonding layer or a resin silicon carbide bonding layer.

6. A volute for an anti-wear pump according to any one of claims 1-5, characterized in that: The inner pump body is set as a silicon carbide sintered inner pump body or a zirconia sintered inner pump body or an alumina sintered inner pump body.

7. A pump, characterized in that: It includes a volute chamber for an anti-wear pump as described in any one of claims 1-6.

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